Real Life System of Equations!

Algebra Level 2

The combined ages of Linda, Ella, and Peter is 120. Linda is 3 times as old as Ella, who is six times younger than Peter. If ee=Ella's age, ll=Linda's age, and pp=Peter's age, what is pl+e\frac{p}{l}+e?

The first part of this puzzle is an excerpt from the BrainSnack book Brain Twisters, Mind Benders, and Puzzle Conundrums by Frank Coussement and Peter De Schepper.

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